
/*
 * Copyright 2011 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
#include "SampleCode.h"
#include "SkView.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkGraphics.h"
#include "SkImageDecoder.h"
#include "SkPath.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkUtils.h"
#include "SkXfermode.h"
#include "SkColorPriv.h"
#include "SkColorFilter.h"
#include "SkTime.h"
#include "SkTypeface.h"

#include "SkOSFile.h"
#include "SkStream.h"

#include "SkGpuDevice.h"

static void make_bitmap(SkBitmap* bitmap, GrContext* ctx)
    {
    SkCanvas canvas;

    if (ctx)
        {
        SkDevice* dev = new SkGpuDevice(ctx, SkBitmap::kARGB_8888_Config, 64, 64);
        canvas.setDevice(dev)->unref();
        *bitmap = dev->accessBitmap(false);
        }
    else
        {
        bitmap->setConfig(SkBitmap::kARGB_8888_Config, 64, 64);
        bitmap->allocPixels();
        canvas.setBitmapDevice(*bitmap);
        }

    canvas.drawColor(SK_ColorRED);
    SkPaint paint;
    paint.setAntiAlias(true);
    const SkPoint pts[] = { { 0, 0 }, { 64, 64 } };
    const SkColor colors[] = { SK_ColorWHITE, SK_ColorBLUE };
    paint.setShader(SkGradientShader::CreateLinear(pts, colors, NULL, 2,
                    SkShader::kClamp_TileMode))->unref();
    canvas.drawCircle(32, 32, 32, paint);
    }

class BitmapRectView : public SampleView
    {
    public:
        BitmapRectView()
            {
            this->setBGColor(SK_ColorGRAY);
            }

    protected:
        // overrides from SkEventSink
        virtual bool onQuery(SkEvent* evt)
            {
            if (SampleCode::TitleQ(*evt))
                {
                SampleCode::TitleR(evt, "BitmapRect");
                return true;
                }
            return this->INHERITED::onQuery(evt);
            }

        virtual void onDrawContent(SkCanvas* canvas)
            {
            GrContext* ctx = SampleCode::GetGr();

            const SkIRect src[] =
                {
                    { 0, 0, 32, 32 },
                    { 0, 0, 80, 80 },
                    { 32, 32, 96, 96 },
                    { -32, -32, 32, 32, }
                };

            SkPaint paint;
            paint.setStyle(SkPaint::kStroke_Style);
            paint.setColor(ctx ? SK_ColorGREEN : SK_ColorYELLOW);

            SkBitmap bitmap;
            make_bitmap(&bitmap, ctx);

            SkRect dstR = { 0, 200, 128, 380 };

            canvas->translate(16, 40);
            for (size_t i = 0; i < SK_ARRAY_COUNT(src); i++)
                {
                SkRect srcR;
                srcR.set(src[i]);

                canvas->drawBitmap(bitmap, 0, 0, &paint);
                canvas->drawBitmapRect(bitmap, &src[i], dstR, &paint);

                canvas->drawRect(dstR, paint);
                canvas->drawRect(srcR, paint);

                canvas->translate(160, 0);
                }
            }

    private:
        typedef SkView INHERITED;
    };

//////////////////////////////////////////////////////////////////////////////

static SkView* MyFactory()
    {
    return new BitmapRectView;
    }
static SkViewRegister reg(MyFactory);

